Title: Plugin is not working with PHP7
Last modified: November 28, 2017

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# Plugin is not working with PHP7

 *  [ThemezHut](https://wordpress.org/support/users/pubudu-malalasekara/)
 * (@pubudu-malalasekara)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-does-not-working-with-php7/)
 * This plugin worked fine on our site. But after upgrading our php version (PHP7)
   it broke the site.
 * Site error_log says this.
 * PHP Fatal error: Uncaught Error: Call to undefined function mb_strtolower() in
   public_html/wp-content/plugins/custom-referral-spam-blocker/custom-referral-spam-
   blocker.php:52
 * I hope you will fix this.
 * Thank You.
    -  This topic was modified 8 years, 6 months ago by [ThemezHut](https://wordpress.org/support/users/pubudu-malalasekara/).
    -  This topic was modified 8 years, 6 months ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).

The topic ‘Plugin is not working with PHP7’ is closed to new replies.

 * ![](https://ps.w.org/custom-referral-spam-blocker/assets/icon-256x256.png?rev
   =1320274)
 * [Custom Referral Spam Blocker](https://wordpress.org/plugins/custom-referral-spam-blocker/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/custom-referral-spam-blocker/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/custom-referral-spam-blocker/)
 * [Active Topics](https://wordpress.org/support/plugin/custom-referral-spam-blocker/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/custom-referral-spam-blocker/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/custom-referral-spam-blocker/reviews/)

 * 0 replies
 * 1 participant
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-does-not-working-with-php7/)
 * Status: not resolved